Haven't been doing much customizing lately, but that hasn't stopped me from:
Blogging about books,
Reviewing toys, sometimes purchased with an eye to future customization,
Taking a class in Sculpture, with live models and everything! Pieces are all done in a type of terracotta. I've worked with similar clay before, back in the mists of elementary/middle school art classes, but not for a long time, and the hand technique is completely different than the polymer and epoxy clays I can use at home. Still, I got better fairly quickly, as you'll see in the progression below.
Standing Female Figure, 10" including base.
Many more pictures (one technically mildly NSFW), different projects, after the jump: